refractory materials: 26 phrases in 12 subjects |
Astronautics | 3 |
Automated equipment | 3 |
Cement | 1 |
Construction | 2 |
Economy | 1 |
Firefighting and fire-control systems | 1 |
Industry | 2 |
Makarov | 7 |
Metallurgy | 1 |
Nanotechnology | 1 |
Silicate industry | 1 |
Technology | 3 |